혀가 길지 않은 개발자

MainActivity.kt package com.jwsoft.kotlinproject import android.os.Bundle import android.util.Log import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) var name = "James Kim" Log.e("change", name.replace("Kim", "혀가 길지 않은 개발자")) } }

Student.kt package com.jwsoft.kotlinproject data class Student ( var name: String ) MainActivity.kt package com.jwsoft.kotlinproject import android.os.Bundle import android.util.Log import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { private var students: ArrayList = ArrayList() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstan..

Student.kt package com.jwsoft.kotlinproject data class Student ( var name: String ) MainActivity.kt package com.jwsoft.kotlinproject import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.util.Log class MainActivity : AppCompatActivity() { private var students: ArrayList = ArrayList() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstan..

AndroidManifest.xml 인터넷 권한 추가 android:usesCleartextTraffic="true" 추가 (에뮬레이터에서 실행하기 위함) MainActivity.kt package com.jwsoft.kotlinproject import android.media.MediaPlayer import android.net.Uri import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.SurfaceHolder class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { sup..

build.gradle (Module: app) android { compileOptions { targetCompatibility JavaVersion.VERSION_1_8 } } dependencies { // ExoPlayer implementation 'com.google.android.exoplayer:exoplayer:2.10.6' } AndroidManifest.xml 인터넷 권한 추가 activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import android.net.Uri import android.os.Bundle import androidx.appcompat.app.AppCompatActivity import com..